[okl4-developer] More NSLU2 debugging

[Joshua Root]

Hi all,

After getting skyeye working with Geoff's help, I've added an IXP420 
machine to it (created by copying pxa250 and setting up a different 
memory map). My OKL4/Iguana boot image now works fine in the simulator.

On the hardware, before virtual memory is turned on I can get output by 
writing to the UART's physical address. But it seems to be dying 
somewhere between there and Platform::init, which of course adds the 
mapping so the UART can be used again.

Any ideas?

- Josh